Fab Lab Addis / Fab Academy 2012

**This exercise is made merely to satisfy the eagerness I have to make staff. It may not full fill the fab lab standard.**

Even if the machines for our lab are not yet here, I decided to work on the 'make something big' exercise with the available materials and equipments we have. And this is until the machines come and I will replace it with a new additional exercise for this topic.
As in my semester project proposal A( my first proposal) , I used the four-bar mechanism to design the 'make something big' exercise. The object I selected to produce is a four bar stand, particularly for LCDs and projectors.
Objects like LCDs or beamers are best placed on a specific location in space to have them projecting on different surfaces. Such functions require a flexible stand that would provide top plane at various heights. we would also want to move them horizontally.

Mechanism:
To design and construct this stand I used a simple mechanical system called four-bar mechanism. All the bars are made of a three to four centimeter diameter bamboo pipes connected with another bamboo details. The four bar mechanism is connected to:
. a top plane (a part that provides working surface , place objects)
. a wheeled base component (a part that has four wheels that would let the four bar move horizontaly. This part also has a stopper to control to control the vertical height change of the mechanism.)

The fallowing are pictures and drawings of the four bar stand showing different views

Plan view

Elevation view one

Elevation view two

Pictures of the stand

Detail pictures

**This exercise is made merely to satisfy the eagerness I have to make staff. It may not full fill the fab lab standard.**